WO2001054987A1 - Method and apparatus for storing plastic preforms in a container - Google Patents
Method and apparatus for storing plastic preforms in a container Download PDFInfo
- Publication number
- WO2001054987A1 WO2001054987A1 PCT/EP2001/000850 EP0100850W WO0154987A1 WO 2001054987 A1 WO2001054987 A1 WO 2001054987A1 EP 0100850 W EP0100850 W EP 0100850W WO 0154987 A1 WO0154987 A1 WO 0154987A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- preforms
- container
- preform
- bulk
- receptacle
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
- B65G69/20—Auxiliary treatments, e.g. aerating, heating, humidifying, deaerating, cooling, de-watering or drying, during loading or unloading; Loading or unloading in a fluid medium other than air
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
- B65B1/20—Reducing volume of filled material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B63/00—Auxiliary devices, not otherwise provided for, for operating on articles or materials to be packaged
Definitions
- the present invention relates to the field of bulk storage of plastic preforms in a container, for handling and transport.
- Polyester containers such as, for example, PET (polyethylene terephthalate) bottles, are in known manner manufactured in
- a plastic preform is produced by injecting one or more thermoplastic resins into a mold; in a second step the preform is blown and stretched in a blowing mold so as to form the container.
- a first known storage method consists of filling a container with bulk preforms.
- This container can be made of various materials (metal, cardboard, ...), and can have various shapes and dimensions.
- the preforms are introduced from the top by falling
- the purpose of the present invention is to propose a new solution for storing preforms in a container which makes it possible to increase the storage density (number of preforms per unit of volume) compared to the known method of bulk storage, and which is more simple to implement than the storage method described in the aforementioned US-A-5,555,706 patent.
- the external face of the preforms is treated so as to make this external face more slippery, and the preforms are stored in bulk in a container, the external face of the preforms after treatment having a sufficiently low coefficient of friction so that the storage density (number of preforms stored per unit of volume) is strictly greater than the storage density which would have been obtained under the same conditions with untreated preforms .
- FIG. 1 is an overall view of a first preferred variant embodiment of an installation and storage facility for plastic preforms, in accordance with the invention
- FIG. 1 is a front view of the treatment receptacle and the spray nozzle of the storage device of the installation of Figure 2
- - Figure 3 shows a plastic preform from the injection machine of the installation of FIG. 1,
- FIG. 4 is a schematic representation of a second preferred embodiment of an installation and manufacturing facility for plastic preforms, according to the invention
- Figure 1 shows a preferred embodiment of an installation of manufacture and storage in a container (C) of polyester preforms, for example of PET, of the type of that (P) illustrated in FIG. 3.
- the preforms which are manufactured and stored online in the container (C) are then conveyed to a blowing machine, making it possible to manufacture, in a manner known per se, plastic bottles, by drawing and blowing the preforms into a blowing mold.
- the blowing machine is located on an industrial site distant from the preform manufacturing site, the containers (C) containing the preforms are transported by any known means of transport and for example by being loaded on trucks for their transport by road .
- a preform (P) usually has a generally tubular shape, with a central axis 1a, closed at a first end 1, and open at the opposite end 1c.
- the preform further comprises a collar 1d which in particular allows it to be held in position in the blow mold.
- a thread 1a is provided in the portion of the preform situated above the flange 1d and subsequently forming the neck of the bottle, allowing subsequently the screwing of a stopper for closing the bottle formed from the preform.
- the preform could however not include a screw thread, its neck being for example shaped at its free edge so as to allow the forced mounting of a capsule.
- the installation for manufacturing and storing preforms comprises an injection machine 2 for plastic preforms which is mounted in line with a storage device 3 produced in accordance with a preferred variant embodiment described in detail below. - after.
- the injection machine 2 is known per se and will therefore not be detailed in the present description. It usually uses a mold with (n) cavities, and makes it possible to manufacture, in parallel with each injection cycle, a batch of (n) plastic preforms. Depending on the case, the mold may include a greater or lesser number (n) of cavities, knowing that the greater the number of cavities and the higher the rate of production of preforms.
- the storage device 3 comprises a conveyor 4, the upstream end portion 4a of which is positioned at the outlet of the machine injection 2, and thus allows to receive the batches of (n) preforms which are successively ejected from the machine 2 at the end of each injection cycle, after opening the mold.
- the conveyor 4 allows each batch of (n) preforms to be successively conveyed to equipment 5 having two functions: the first function is the spraying of a lubricating material on each batch of (n) preforms; the second function is to allow the introduction by gravity and in free fall into the container (C) of each batch of (n) lubricated preforms, the height of fall of the preforms being adjustable.
- the equipment 5 comprises a treatment receptacle 6 below which is intended to be placed the container (C), and means allowing the spraying of a lubricating material on a batch of preforms temporarily contained in the receptacle of treatment 6.
- the treatment receptacle 6 is open in the upper part, has a retractable bottom so as to allow the preforms to fall, and can be adjusted in the vertical position (adjustment of the height H of the drop of the preforms).
- this treatment receptacle is formed by two jaws 6a, 6h, at least one of which 6b is pivotally mounted along a substantially horizontal axis 7, and is equipped with a jack 8 allowing it to be pivoted between a first position (illustrated in solid lines in FIG. 1) in which it forms with the other jaw 6a a receptacle with closed bottom, and a second retracted position (illustrated in dotted lines in FIG. 1) in which it forms with the another jaw 6 has a receptacle 6 with an open bottom.
- the two jaws 6a, 6h could be pivotally mounted, for opening the bottom of the receptacle 6.
- the downstream end 4b. of the conveyor 4 is positioned above and directly above the treatment receptacle 6 so that the preforms which are conveyed by the conveyor 4 from the outlet of the injection machine 2, when they reach the end of the conveyor at the level of the downstream end 4b_, are evacuated by gravity from the conveyor 4 and fall inside the treatment receptacle 6.
- the means for spraying a lubricating material onto the batch of (n) preforms temporarily contained in the treatment receptacle 6 comprise a spray head 9 (FIG. 2) which comprises two spray nozzles 9a and 9b, and which is mounted on the -above the treatment receptacle 6.
- the spray head 9 could have only one spray nozzle, or on the contrary more than two spray nozzles.
- this spray head 9 is pivotally mounted along a substantially horizontal axis 10, and is positioned substantially perpendicular to the center of the treatment receptacle 6.
- This head 9 is equipped with a jack 11, which allows to rotate it make its axis of rotation 10, and which is controlled so as to animate the spray head 9, and consequently the two spray nozzles 9a and 9b, with an alternating rotation movement of limited angle ( A), between two extreme positions illustrated respectively in solid lines and in dotted lines in FIG. 2.
- the angle (A) of rotation of the spray head 9 is adjusted so as to be able to perform with the spray jets coming from the nozzles 9a and 9b a sweep of the entire bottom of the respectable. 6.
- the spray nozzles 9a and 9b are supplied in parallel with a lubricating liquid under pressure, by means of two flexible supply lines 12a and 12b respectively, which are connected to a reservoir of " lubricating liquid (not shown) via a pump (not shown)
- the cylinders 8 and 11 and the pump for supplying the spray nozzle 9 are controlled by means of an industrial programmable controller (not shown) in synchronism with the cycle time of the machine. injection 2 so as to obtain the operation which will now be described.
- the method of the invention implemented by means of the installation of FIG. 1 takes place according to an iterative cycle comprising the successive operations (a) to (c) described below, each cycle corresponding to the manufacturing and online storage of a batch of (n) preforms.
- the conveyor 4 is in continuous operation, its deck being driven at a predetermined substantially constant linear speed.
- an empty open container (C) was positioned below the treatment receptacle 6.
- the injection machine 2 manufactures a batch of (n) preforms according to its own operating cycle.
- the (n) preforms are received on the conveyor 4, at the outlet of the injection machine 2 after opening the mold.
- the (n) preforms are conveyed in bulk by the conveyor 4 at a predetermined speed up to the level of the treatment receptacle 6, inside which they fall by gravity. At this stage, the bottom of the receptacle 6 is closed, the jaw 6b being in the position illustrated in solid lines in FIG. 1.
- the triggering of the spraying cycle may be periodic and fixed as a function of the duration of the machine cycle. injection 2, and / or be conditioned by the detection by means of a sensor of the presence of preforres in the bottom of the treatment receptacle 6.
- the jack 8 is automatically controlled so as to allow the jaw 6b to be retracted into its position illustrated in dotted lines in FIG. 1 (opening of the bottom of the treatment receptacle 6).
- the batch of (n) preforms contained in the receptacle is thus evacuated by gravity immediately after the spraying treatment, the preforms falling inside the open container (C).
- the preforms During their storage in the open container (C), the preforms accumulate in the form of a pile of loose preforms. Thanks to the spraying of the lubricant, the preforms are made more slippery relative to each other (their external face having a lower coefficient of friction). It is thus found in practice that the preforms within the bulk pile naturally tend to position and orient themselves by sliding relative to one another so as to occupy the least possible volume. This improves the storage density (number of preforms per unit of volume). This translates in practice into a self-leveling of the surface of the heap of bulk preforms, unlike, a heap of untreated bulk preforms, the surface is characterized by a convex dome shape.
- the manufacturing and storage method described above with reference to FIGS. 1 to 3 was implemented by spraying the preforms with a lubricating material consisting of a liquid silicone edible oil, sprayed at a temperature of around 20 ° C. It was especially a silicone oil commefcialzone by Rhodia Chimie under the trade name SILBIONE ® OIL 70047 V350, with a 25 ° C viscosity of 350 (+/- 5%) and a surface tension at 25 ° C equal to approximately 21.1 nN / m.
- the preforms were injected in PET, had an external diameter d ( Figure 3) worth 28mm and a length 1 worth 150mm. They were produced in successive batches of 48 preforms.
- silicone oil was sprayed into the receptacle for each batch of 48 preforms.
- the container used had an octagonal section whose eight sides had respectively lengths 300mm, 740mm, 300mm, 550mm, 300mm, 740mm, 300mm and 550mm and a height of 1m and was filled to the top with a number of 6700 preforms.
- the filling level was checked by a visual check of the filling height.
- an identical container was filled with PET preforms (not treated with a lubricant) and under the same storage conditions (use of the installation in FIG. 1 with the same drop height of the preforms and without spraying lubricating material by means of the spray nozzle).
- the filling level of the container was reached with a number of 5800 preforms. This filling level was considered to be reached when the highest point of the surface (convex dome) of the pile of preforms reached the filling level of the container.
- the storage density of the treated preforms was therefore approximately 16% higher than that obtained under the same conditions with untreated preforms.
- the invention is not limited to the implementation of the particular example of the aforementioned silicone oil, but extends more generally to any lubrication treatment of all or part of at least the external face preforms in order to obtain a coefficient of friction of this external face which is low enough to increase the number of preforms stored in bulk in a given volume.
- the lubricating material is chosen and applied to the preforms so that the storage density of the preforms is greater at least 10%, and preferably at least 15% at the storage density which would have been obtained under the same conditions with untreated preforms.
- the application of the lubricating material is not necessarily carried out by spraying, but this material could also in another variant be applied by immersion of the preforms in a bath of lubricating material or also by coating the preforms with lubricating material.
- the lubrication treatment can be carried out not on a batch of several preforms, but individually on each preform, for example by means of the installation of FIG. 4.
- This installation comprises a unit 13 for manufacturing preforms by injection- molding (injection machine usually using a mold with one or more cavities), which is fitted at the outlet of a 3 'device allowing the application of a lubricating material to the preforms and the storage of the lubricated preforms in a container C.
- This device 3 ′ comprises a conveyor 14, which makes it possible to convey in bulk the preforms produced at the outlet of the unit 13, to a machine 15 for storing preforms, more commonly known as an “unscrambler”.
- This machine 15 also known to those skilled in the art, comprises a hopper (or receptacle) into which the preforms are introduced in bulk by gravity, and delivers the preforms one after the other, each preform being oriented in a predetermined position (flange up in the example in Figure 4).
- the preforms P are conveyed individually and in line (direction of transport indicated by arrow D) by means of a transfer system 16 (known per se), which makes it possible to transport the preforms P individually to the storage container C, maintaining the orientation of each preform.
- a spray nozzle or a set of nozzles
- a lubricating material such as for example a silicone oil.
- This nozzle 18 is positioned on the path of the preforms P below the level of the flange 1d of the preforms P.
- each preform P is conveyed by the transfer system 16 and passes in front of the spray nozzle 18 while being oriented in the position illustrated in figure 4.
- the spray nozzle 18 generates in the direction of each successive preform a spray jet, which makes it possible to lubricate the external surface of the body of the preform P, only in its portion extending below the flange 1d. of the preform P.
- It may be a continuous spray jet, or on the contrary, discontinuous triggered by a sensor detecting the presence of the preform to be lubricated.
- each preform is automatically evacuated by gravity from the transfer system 16, and falls inside the container C.
- the main advantage of the variant of FIG. 4 is that it makes it possible to prevent the lubricating material from entering inside the preforms.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2001240549A AU2001240549A1 (en) | 2000-01-28 | 2001-01-26 | Method and apparatus for storing plastic preforms in a container |
EP01911537A EP1252067B1 (en) | 2000-01-28 | 2001-01-26 | Method and apparatus for storing plastic preforms in a container |
US10/182,083 US6820396B2 (en) | 2000-01-28 | 2001-01-26 | Method for storing thermoplastic preforms in a container |
DE60104090T DE60104090T2 (en) | 2000-01-28 | 2001-01-26 | METHOD AND DEVICE FOR STORING PLASTIC PREPARATIONS IN A CONTAINER |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0001122 | 2000-01-28 | ||
FR0001122A FR2804405B1 (en) | 2000-01-28 | 2000-01-28 | METHOD AND APPARATUS FOR STORING PLASTIC PREFORMS IN A CONTAINER, PROCESS AND INSTALLATION FOR MANUFACTURING AND STORAGE OF PLASTIC PREFORMS |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/964,287 Division US7093411B2 (en) | 2000-01-28 | 2004-10-13 | Method for storing thermoplastic preforms in a container |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001054987A1 true WO2001054987A1 (en) | 2001-08-02 |
Family
ID=8846431
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2001/000850 WO2001054987A1 (en) | 2000-01-28 | 2001-01-26 | Method and apparatus for storing plastic preforms in a container |
Country Status (7)
Country | Link |
---|---|
US (2) | US6820396B2 (en) |
EP (1) | EP1252067B1 (en) |
AU (1) | AU2001240549A1 (en) |
DE (1) | DE60104090T2 (en) |
ES (1) | ES2223796T3 (en) |
FR (1) | FR2804405B1 (en) |
WO (1) | WO2001054987A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7093411B2 (en) | 2000-01-28 | 2006-08-22 | Amcor Limited | Method for storing thermoplastic preforms in a container |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7270229B2 (en) * | 2004-11-05 | 2007-09-18 | New England Machinery, Inc. | Container unscrambler system having adjustable track and method |
US7219794B2 (en) * | 2004-11-05 | 2007-05-22 | New England Machinery, Inc. | Adjustable guide chute and method for processing containers |
US7563495B2 (en) | 2005-05-25 | 2009-07-21 | Kraft Foods Global Brands Llc | Food container |
EP2174870B1 (en) * | 2008-10-13 | 2011-09-14 | La Seda De Barcelona S.A. | Preform distributor for drop loading an open container with preforms in bulk |
AU2010201032B2 (en) | 2009-04-29 | 2014-11-20 | Resmed Limited | Methods and Apparatus for Detecting and Treating Respiratory Insufficiency |
WO2013067580A1 (en) | 2011-11-07 | 2013-05-16 | Resmed Limited | Methods and apparatus for providing ventilation to a patient |
CN115813368A (en) | 2012-05-30 | 2023-03-21 | 瑞思迈传感器技术有限公司 | Method and apparatus for monitoring cardiopulmonary health |
US10525219B2 (en) | 2012-06-26 | 2020-01-07 | Resmed Sensor Technologies Limited | Methods and apparatus for monitoring and treating respiratory insufficiency |
US10794595B2 (en) | 2014-02-03 | 2020-10-06 | Raytheon Technologies Corporation | Stepped heat shield for a turbine engine combustor |
WO2015117137A1 (en) | 2014-02-03 | 2015-08-06 | United Technologies Corporation | Film cooling a combustor wall of a turbine engine |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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DE3340457A1 (en) * | 1983-11-09 | 1985-05-15 | Holstein Und Kappert Gmbh, 4600 Dortmund | Method and device for influencing the transport qualities of a plate conveyor |
EP0372628A2 (en) * | 1988-12-05 | 1990-06-13 | Unilever N.V. | Use of aqueous lubricant solutions based on fatty alkyl amines |
WO1995018043A1 (en) | 1993-12-27 | 1995-07-06 | Resilux | Rearrangement device for container with loose articles and/or products, and rearrangement method |
US5465822A (en) * | 1992-03-16 | 1995-11-14 | Environmental Products Corporation | Commodity densification assembly having a multiple path distribution device |
US5555706A (en) | 1995-05-24 | 1996-09-17 | Hoover Universal, Inc. | Method and apparatus for stacking preforms for blow molded plastic containers |
Family Cites Families (8)
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US3566579A (en) * | 1968-11-18 | 1971-03-02 | Brogdex Co | Apparatus and method for packaging citrus fruit |
US4351141A (en) * | 1980-08-25 | 1982-09-28 | J. R. Simplot Company | Carton filling system |
US4538542A (en) * | 1984-07-16 | 1985-09-03 | Nordson Corporation | System for spray coating substrates |
US5509965A (en) * | 1992-03-18 | 1996-04-23 | Continental Pet Technologies, Inc. | Preform coating apparatus and method |
US5391308A (en) * | 1993-03-08 | 1995-02-21 | Despo Chemicals International, Inc. | Lubricant for transport of P.E.T. containers |
TWI250934B (en) * | 1997-10-17 | 2006-03-11 | Advancsd Plastics Technologies | Barrier-coated polyester articles and the fabrication method thereof |
US6223541B1 (en) * | 1999-08-17 | 2001-05-01 | Fasti, Farrag & Stipsits Gesmbh | Method and device for the after-cooling of a preform in the injection molding process |
FR2804405B1 (en) | 2000-01-28 | 2002-05-10 | Schmalbach Lubeca | METHOD AND APPARATUS FOR STORING PLASTIC PREFORMS IN A CONTAINER, PROCESS AND INSTALLATION FOR MANUFACTURING AND STORAGE OF PLASTIC PREFORMS |
-
2000
- 2000-01-28 FR FR0001122A patent/FR2804405B1/en not_active Expired - Fee Related
-
2001
- 2001-01-26 US US10/182,083 patent/US6820396B2/en not_active Expired - Fee Related
- 2001-01-26 WO PCT/EP2001/000850 patent/WO2001054987A1/en active IP Right Grant
- 2001-01-26 EP EP01911537A patent/EP1252067B1/en not_active Expired - Lifetime
- 2001-01-26 AU AU2001240549A patent/AU2001240549A1/en not_active Abandoned
- 2001-01-26 DE DE60104090T patent/DE60104090T2/en not_active Expired - Lifetime
- 2001-01-26 ES ES01911537T patent/ES2223796T3/en not_active Expired - Lifetime
-
2004
- 2004-10-13 US US10/964,287 patent/US7093411B2/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3340457A1 (en) * | 1983-11-09 | 1985-05-15 | Holstein Und Kappert Gmbh, 4600 Dortmund | Method and device for influencing the transport qualities of a plate conveyor |
EP0372628A2 (en) * | 1988-12-05 | 1990-06-13 | Unilever N.V. | Use of aqueous lubricant solutions based on fatty alkyl amines |
US5465822A (en) * | 1992-03-16 | 1995-11-14 | Environmental Products Corporation | Commodity densification assembly having a multiple path distribution device |
WO1995018043A1 (en) | 1993-12-27 | 1995-07-06 | Resilux | Rearrangement device for container with loose articles and/or products, and rearrangement method |
US5555706A (en) | 1995-05-24 | 1996-09-17 | Hoover Universal, Inc. | Method and apparatus for stacking preforms for blow molded plastic containers |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7093411B2 (en) | 2000-01-28 | 2006-08-22 | Amcor Limited | Method for storing thermoplastic preforms in a container |
Also Published As
Publication number | Publication date |
---|---|
US7093411B2 (en) | 2006-08-22 |
DE60104090T2 (en) | 2005-06-02 |
EP1252067A1 (en) | 2002-10-30 |
FR2804405A1 (en) | 2001-08-03 |
US6820396B2 (en) | 2004-11-23 |
US20050076615A1 (en) | 2005-04-14 |
DE60104090D1 (en) | 2004-08-05 |
ES2223796T3 (en) | 2005-03-01 |
AU2001240549A1 (en) | 2001-08-07 |
EP1252067B1 (en) | 2004-06-30 |
FR2804405B1 (en) | 2002-05-10 |
US20030121233A1 (en) | 2003-07-03 |
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